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chelerythrine/tumore della mammella
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Pagina 1 a partire dal 20 risultati
Protein kinase C inhibitor chelerythrine selectively inhibits proliferation of triple-negative breast cancer cells.
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Triple-negative breast cancer (TNBC) is a subtype of breast cancer lacking targeted therapy currently. Recent studies imply that protein kinase C may play important roles in TNBC development and could be a specific target. In this study, we evaluated the anti-proliferative activity of PKC inhibitor
Downregulation of clusterin mediates sensitivity to protein kinase inhibitors in breast cancer cells.
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The efficacy of protein kinase inhibitors (PKIs) has been shown in clinical assays for cancer, but as isolated agents, they only have a modest effect. One of the most important characteristics of mitogen-activated PKIs is their ability to decrease the apoptotic threshold of cancer cells, sensitizing
Regulation of mdm2 mRNA expression in human breast tumor-derived GI-101A cells.
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The MDM2 oncoprotein (p90) binds to p53 and inhibits its function. Here, the expression of mdm2 mRNA subsequent to phorbol 12,13-dibutyrate (PDB) or diethylstilbestrol (DES) treatment was analyzed in human breast tumor-derived GI-101A cell line. Expression of mdm2 mRNA was detected in rapidly
Effect of systemic lupus erythematosus (SLE) treatment drugs on GI-101A breast tumor cell growth.
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The effect of systemic lupus erythematosus (SLE) treatment drugs on PKC (protein kinase C) activity and cell growth was studied using GI-101A breast tumor cells. Both hydroxychloroquine (HCQ) and prednisone treatments significantly increased the PKC activity in GI-101A cells after 60 min. Treatment
Protein kinase C zeta is required for epidermal growth factor-induced chemotaxis of human breast cancer cells.
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Chemotaxis plays an important role in cancer cell metastasis. In this study, we showed that epidermal growth factor (EGF) was a more potent chemoattractant than chemokine SDF-1alpha/CXCL12 for human breast cancer cell MDA-MB-231. Different inhibitors were used to evaluate the involvement of 12
Selective modulation of protein kinase A and protein kinase C activities in epidermal growth factor (EGF)-stimulated MCF-7 breast cancer cells.
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In human MCF-7 breast cancer cells, both protein kinase A (PKA) and different members of the protein kinase C (PKC) family are stimulated upon binding of epidermal growth factor (EGF) to cell surface receptors. Selective stimulation of calcium-dependent PKCs with 10(-6) to 10(-9) M Thymeleatoxin
Evaluation of the Anticancer Activities of the Plant Alkaloids Sanguinarine and Chelerythrine in Human Breast Adenocarcinoma Cells.
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BACKGROUND
Breast cancer is associated with a high mortality rate around the world due to its aggressiveness and high resistance to conventional therapies. Sanguinarine (SAN) and Chelerythrine (CHE) are plant alkaloids extracted from Sanguinaria canadensis and Macleaya cordata, which have been
Proliferation of human breast cancer cells and anti-cancer action of doxorubicin and vinblastine are independent of PKC-alpha.
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Protein kinase C (PKC) has been considered for a potential target of anticancer chemotherapy. PKC-alpha has been associated with growth and metastasis of some cancer cells. However, the role of PKC-alpha in human breast cancer cell proliferation and anticancer chemotherapy remains unclear. In this
Chelerythrine down regulates expression of VEGFA, BCL2 and KRAS by arresting G-Quadruplex structures at their promoter regions.
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A putative anticancer plant alkaloid, Chelerythrine binds to G-quadruplexes at promoters of VEGFA, BCL2 and KRAS genes and down regulates their expression. The association of Chelerythrine to G-quadruplex at the promoters of these oncogenes were monitored using UV absorption spectroscopy,
Efficient extraction and purification of benzo[c]phenanthridine alkaloids from Macleaya cordata (Willd) R. Br. by combination of ultrahigh pressure extraction and pH-zone-refining counter-current chromatography with anti-breast cancer activity in vitro
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Introduction: Macleaya cordata (Willd) R. Br. (Papaveraceae family) is a well-known traditional Chinese medicine used to treat muscle pain, inflamed wounds, and bee bites. Benzo[c]phenanthridine alkaloids are the main active ingredients
Phytochemical Analysis with Antioxidant and Cytotoxicity Studies of the Bioactive Principles from Zanthoxylum capense (Small Knobwood).
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BACKGROUND
Zanthoxylum capense (small knobwood) is a South African species known for a wide range of anecdotal uses. However, there is a dearth of information on its phytoconstitutional make-up, specifically its knobs, with only a few reports on the bioactive compounds that could justify its
In vitro and in vivo investigations on the antitumour activity of Chelidonium majus.
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BACKGROUND
Chelidonium majus L. (Papaveraceae) (greater celandine) is a medicinal herb that is widely spread in Europe. Antitumoural activity has been reported for C. majus extracts.
OBJECTIVE
To investigate the antitumour activity of a C. majus extract in vitro and in vivo.
METHODS
Cytotoxic
Dihydrochelerythrine and its derivatives: Synthesis and their application as potential G-quadruplex DNA stabilizing agents.
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A convenient route was envisaged toward the synthesis of dihydrochelerythrine (DHCHL), 4 by intramolecular Suzuki coupling of 2-bromo-N-(2-bromobenzyl)-naphthalen-1-amine derivative 5 via in situ generated arylborane. This compound was converted to (±)-6-acetonyldihydrochelerythrine (ADC), 3 which
Expression of vascular endothelial growth factor mRNA in GI-101A and HL-60 cell lines.
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Vascular endothelial growth factor (VEGF) is a potent angiogenic factor that has a strong association with growth and metastasis of various cancers. We analyzed the expression of VEGF mRNA levels in human breast-tumor derived GI-101A cells and in human promyelocytic leukemia derived HL-60 cells
Potentiation of genomic actions of estrogen by membrane actions in mcf-7 cells and the involvement of protein kinase C activation.
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It is now well established that estrogens (E) have at least two kinds of actions: genomic and nongenomic. But the relationship between these actions has hardly been explored. In this study we investigated this relationship in MCF-7 cells, a human breast cancer cell line, and explored the possible
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